| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] for year | 28 |
|
| 2 | have [vb pp] for several year | 22 |
|
| 3 | have been [vb pp] for several | 19 |
|
| 4 | been [vb pp] for several year | 6 |
|
